Home / 231,128.20-346,724.70-90,854.20

Finding the Fourth Proportional to 231,128.20, 346,724.70 and 90,854.20

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Solution

The fourth proportional to 231,128.20, 346,724.70 and 90,854.20 is: 136,294.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,128.20 : 346,724.70 = 90,854.20 : x
  2. Step 2: Convert to fraction form
    231,128.20/346,724.70 = 90,854.20/x
  3. Step 3: Cross multiply
    231,128.20x = 346,724.70 × 90,854.20
  4. Step 4: Simplify right side
    231,128.20x = 31,501,395,238.74
  5. Step 5: Solve for x
    x = 31,501,395,238.74/231,128.20
  6. Step 6: Final answer
    x = 136,294.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.